/* reset */
* {
  margin: 0;
  padding: 0;
  border: none;
}
/* common */
:root {
  --color-light-blue: #f4f9ff;
  --color-blue: #4968ad;
  --color-dark-blue: #1e2c4b;
  --font-color: #1e2c4b;
  --font-color-grey: #838498;
  --font-color-dark-grey: #7d7d7d;
  --border-color-light-blue: #e8f1fd;
  --box-border-blue: #2155a7;
  --box-border-dark-blue: #000026;
  --box-border-light-blue: #c3cde3;
  --box-radius: 5px;
}
html {
  font-size: 16px;
}
/* users */
body {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: var(--color-light-blue);
}
.container {
  width: 34rem;
  height: auto;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  padding: 4rem 6rem;
  background-color: white;
  border-radius: 1rem;
  box-shadow: 2px 2px 20px rgba(0, 0, 0, 0.2);
  position: relative;
}
.container::before {
  content: "";
  position: absolute;
  top: -1.5rem;
  left: -1.5rem;
  width: calc(100% + 3em);
  height: calc(100% + 3em);
  background-color: var(--border-color-light-blue);
  border-radius: 1.2rem;
  z-index: -1;
}
.container p {
  color: var(--font-color);
  text-align: center;
}
p.title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 3rem;
  margin-bottom: 2.5rem;
}
p.description {
  font-size: 1.2rem;
  font-size: 500;
  line-height: 1.6rem;
  margin-bottom: 1.5rem;
}
p.notion-text {
  font-size: 0.8rem;
  padding: 0 4rem;
}
p.line-text {
  font-weight: bold;
  color: var(--font-color-dark-grey);
}
button,
.form-section {
  height: 3.5rem;
}
button {
  font-size: 1rem;
  font-weight: 500;
  color: white;
  width: 100%;
  height: 3.5rem;
  border-radius: var(--box-radius);
  position: relative;
}
.btn-blue {
  background-color: var(--color-blue);
  border-color: var(--box-border-blue);
}
.btn-dark-blue {
  background-color: var(--color-dark-blue);
  border-color: var(--box-border-dark-blue);
}
.submit-form {
  width: 100%;
  height: auto;
  flex-direction: column;
  justify-content: center;
  align-items: space-between;
  margin-bottom: 1.2rem;
}
.submit-form .form-section,
button,
.line-text {
  margin-bottom: 1.1rem;
}
.submit-form .form-section {
  width: 100%;
  display: flex;
  align-items: space-between;
}
input {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  border: 2px solid var(--box-border-light-blue);
  border-radius: var(--box-radius);
  font-size: 1rem;
  padding: 0 1.2rem;
  margin-left: 0.6rem;
}
input::placeholder {
  color: var(--font-color-dark-grey);
}
input:first-child {
  margin-left: 0;
}
